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Cost Estimation

Cost Estimation. Advanced Cost Estimation Roger Warburton. Software Project Life Cycle. The Cassandra Project. Cumulative vs Instantaneous. The Cumulative Version. Final Budget??. Projection. The Reality is Useful. Peak => Good Forecast. Construction Labor Profile.

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Cost Estimation

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  1. Cost Estimation Advanced Cost Estimation Roger Warburton

  2. Software Project Life Cycle

  3. The Cassandra Project

  4. Cumulative vs Instantaneous

  5. The Cumulative Version Final Budget??

  6. Projection

  7. The Reality is Useful Peak => Good Forecast

  8. Construction Labor Profile

  9. The Cassandra Project

  10. Cassandra Actions Calibration => Same CurveProject completion timeCost EstimateProblems ….

  11. Cassandra Lessons Plan for project Hardware & Software Interfaces Data does not lie Don’t hide the truthEarly diagnosis gives you options Creative SolutionsUnmarried engineers to Seattle

  12. Macro Cost Estimation

  13. UPS 2 Day Rates for 150 lb.

  14. UPS 2 Day Rates for 150 lb. • < 200 miles: Cost = $90.00

  15. Transportation Costs • Truck Load: $0.10 per ton-mile • LTL: $0.31 per ton-mile • Small Package: • 3X LTL rates • More for express • Rail: 50 - 80% of TL rates

  16. Macro Cost Estimation Top Down (from the Project) External (Known?) Parameters Historical Data & Similarity Experienced Estimator EmpiricalEquation + Parameters Internal & External Effects Every Industry has one Museums Exhibits Floors & Walls

  17. Macro Cost: Disadvantages EarlyUncertainDealing with uncertaintyProblem: How much will this cost?Once published, “FIXED”

  18. Cost increases due to handicap accessibility in public buildings Schroeder and Steinfeld (1979) The estimated cost of accessible buildings. US Department of Housing and Urban Development.

  19. Macro Costs Summary Necessary EvilUsefulness Under-ValuedAccuracy σ Customer wants to knowYou need a budget

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